Blood examination in how much time?

Hi there guys.A friend of mine has a problem.He started gym with me before a couple months and the last month he used creatine monohydrate prwteini and aminos.When his mother show him she though that he is taking suplements cause the diference in his boby is quite big. So shw wants from him when he goes to his home from college to make some blood examination.In how mych time will his body be clean off them?One moth?

Hi there guys.A friend of mine has a problem.He started gym with me before a couple months and the last month he used creatine monohydrate prwteini and aminos.When his mother show him she though that he is taking suplements cause the diference in his boby is quite big. So shw wants from him when he goes to his home from college to make some blood examination.In how mych time will his body be clean off them?One moth?